Kvantemekaniske partiklers (incl. fotoners) sandsynlighedsfunktion/bølgefunktion kan få lavet flere pukler - og hver af puklerne kan sendes i hver sin retning - incl. modsat af hinanden. (Impulsbevarelse er stadig gældende)
(Fx er en topuklet bølgefunktion er også hyper-entanglet - det er jo den samme partikel blot med forhøjet sandsynlighed de steder, hvor puklerne er som funktion af tiden).
March 25, 2015, scitechdaily.com: Quantum Experiment Verifies Nonlocal Wavefunction Collapse for a Single Particle: Citat: "... An experiment devised in Griffith University’s Center for Quantum Dynamics has for the first time demonstrated Albert Einstein’s original conception of “spooky action at a distance” using a single particle. ... “However, rather than simply detecting the presence or absence of the particle, we used homodyne measurements enabling one party to make different measurements and the other, using quantum tomography, to test the effect of those choices.” “Through these different measurements, you see the wave function collapse in different ways, thus proving its existence and showing that Einstein was wrong.” ..."
24 March 2015, nature.com: Experimental proof of nonlocal wavefunction collapse for a single particle using homodyne measurements: Citat: "... Here we demonstrate this single-particle spooky action, with no efficiency loophole, by splitting a single photon between two laboratories and experimentally testing whether the choice of measurement in one laboratory really causes a change in the local quantum state in the other laboratory. To this end, we use homodyne measurements with six different measurement settings and quantitatively verify Einstein’s spooky action by violating an Einstein–Podolsky–Rosen-steering inequality by 0.042±0.006. Our experiment also verifies the entanglement of the split single photon even when one side is untrusted. ... However, there is a key difference, which enables demonstration of the nonlocal collapse experimentally: rather than simply detecting the presence or absence of the photon, homodyne detection is used. This gives Alice the power to make different measurements, and enables Bob to test (using tomography) whether Alice’s measurement choice affects the way his conditioned state collapses, without having to trust anything outside his own laboratory. ... In this paper, we rigorously demonstrate Einstein’s elusive ‘spooky action at a distance’ for a single particle without opening the efficiency loophole. We note that, unlike ref. 12, we do not claim to have closed the separation loophole. Our work is the one-sided device-independent verification of spatial-mode entanglement for a single photon. ... The violation of the EPR-steering inequality by seven s.d.’s [standard deviations] is a clear proof that Bob’s quantum state cannot exist independently of Alice, but rather is collapsed by Alice’s measurement. ..."
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January 21, 2015, scitechdaily.com: A Way To Self-Propel Subatomic Particles Without External Forces: Citat: "... Some physical principles have been considered immutable since the time of Isaac Newton: Light always travels in straight lines. No physical object can change its speed unless some outside force acts on it. ... Now, in a new variation on the methods used to bend light, physicists at MIT and Israel’s Technion have found that subatomic particles can be induced to speed up all by themselves, almost to the speed of light, without the application of any external forces. ... By manipulating the wave structure, the team found, it should be possible to cause electrons to behave in unusual and counterintuitive ways. ... It turns out that this self-acceleration does not actually violate any physical laws — such as the conservation of momentum — because at the same time the particle is accelerating, it is also spreading out spatially in the opposite direction. ..."